\begin{tabular}{l*{12}{D{.}{.}{-1}}}
                &\multicolumn{3}{c}{Ageism Explicit}                     &\multicolumn{3}{c}{Ageism Thermometer}                  &\multicolumn{3}{c}{Ageism Index}                        &\multicolumn{3}{c}{Ageism IAT Score}                    \\\cmidrule(lr){2-4}\cmidrule(lr){5-7}\cmidrule(lr){8-10}\cmidrule(lr){11-13}
                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         &\multicolumn{1}{c}{(9)}         &\multicolumn{1}{c}{(10)}         &\multicolumn{1}{c}{(11)}         &\multicolumn{1}{c}{(12)}         \\
\midrule
Generational Grievances Index&    0.333\sym{***}&                  &    0.282\sym{***}&    0.296\sym{***}&                  &    0.279\sym{***}&    0.212\sym{***}&                  &    0.128\sym{**} &    0.124\sym{***}&                  &    0.125\sym{***}\\
                &  (0.050)         &                  &  (0.052)         &  (0.059)         &                  &  (0.061)         &  (0.060)         &                  &  (0.057)         &  (0.030)         &                  &  (0.032)         \\
\addlinespace
Personal Grievances Index&                  &    0.257\sym{***}&    0.176\sym{***}&                  &    0.135\sym{**} &    0.063         &                  &    0.338\sym{***}&    0.303\sym{***}&                  &    0.032         &   -0.002         \\
                &                  &  (0.049)         &  (0.052)         &                  &  (0.056)         &  (0.057)         &                  &  (0.060)         &  (0.059)         &                  &  (0.028)         &  (0.030)         \\
\midrule
Observations    &      469         &      469         &      469         &      473         &      473         &      473         &      474         &      474         &      474         &      261         &      261         &      261         \\
Adjusted \(R^{2}\)&    0.084         &    0.049         &    0.104         &    0.059         &    0.011         &    0.059         &    0.031         &    0.084         &    0.093         &    0.051         &    0.000         &    0.047         \\
\end{tabular}
